Here is some good explaination. check out it. http://www.mssqltips.com/tip.asp?tip=1360 CHECKPOINT; GO DBCC DROPCLEANBUFFERS; GO From the linked article: If all of the performance testing is conducted in SQL Server the best approach may be to issue a CHECKPOINT and then issue the DBCC DROPCLEANBUFFERS command. Although the CHECKPOINT process is an automatic internal system process … Read more
I found here an undocumented option to create a new application using an older version of Rails. rails _2.1.0_ new myapp
You need install the postgreSQL dev package with header of PostgreSQL sudo apt-get install libpq-dev
Looper.myLooper() == Looper.getMainLooper() if this returns true, then you’re on the UI thread!
mkdir -p “$d” && cp file “$d” (there’s no such option for cp).
Makefile part of the question This is pretty easy, unless you don’t need to generalize try something like the code below (but replace space indentation with tabs near g++) SRC_DIR := …/src OBJ_DIR := …/obj SRC_FILES := $(wildcard $(SRC_DIR)/*.cpp) OBJ_FILES := $(patsubst $(SRC_DIR)/%.cpp,$(OBJ_DIR)/%.o,$(SRC_FILES)) LDFLAGS := … CPPFLAGS := … CXXFLAGS := … main.exe: $(OBJ_FILES) g++ … Read more
If you convert directly from resources values: int width = getResources().getDimensionPixelSize(R.dimen.popup_width); int height = getResources().getDimensionPixelSize(R.dimen.popup_height); getDialog().getWindow().setLayout(width, height); Then specify match_parent in your layout for the dialog: android:layout_width=”match_parent” android:layout_height=”match_parent” You only have to worry about one place (place it in your DialogFragment#onResume). Its not perfect, but at least it works for having a RelativeLayout as the … Read more
There are several optimizations a compiler can make on a switch. I don’t think the oft-mentioned “jump-table” is a very useful one though, as it only works when the input can be bounded some way. C Pseudocode for a “jump table” would be something like this — note that the compiler in practice would need … Read more
Try: tr -s ‘ ‘ <text.txt | cut -d ‘ ‘ -f4 From the tr man page: -s, –squeeze-repeats replace each input sequence of a repeated character that is listed in SET1 with a single occurrence of that character